Spire Jewel 550. Nominal power: 550 W, AC input frequency: 60 Hz, Hold time: 16 ms. Connector(s): 20+4pin,1PCS;3IDE/1Floppy,2PCS;12V(4+4)8pin,1PCS;2SATA,1PCS;PCI-E6pin,1PCS. Noise level: 21 dB